Combination gas and coal range



W. V. ROBINSON- COMBINATION GAS AND COAL RANGE.

APPLICATION FILED MAY I6. |921. l PatenteSept. 12, 1922,

2 SHEETS-SHEET I.

mm 44% MM.

*M ATTORNEYAS Wt V. ROBINSON.

COMBINATION GAS AND coAL RANGE.

APPLICATION FILED MAY I6. 192i. I

Patented Sept. 12, 1922.`

2 SHEETS-SHEET 2.

Patented Sept. l2, i922.

narra starts Para WILLIAM v. ROBINSON, OP owosso, MICHIGAN, AssIGNon To THE INDEPENDENT sToVE COMPANY, OP owosso', MICHIGAN, A CORPORATION oF MICHIGAN. y

COMBINATION GAS Application led May 16,

s To all whom t may concern residing at Owosso, in the county ofi Shiawassee and State of Michigan, have invented certain new and useful Improvements in Combination Gas and Coal Ranges, of which4 the .following is a specification, reference being had therein to the accompanying drawings. l 1

The invention relates to combination coal and gas stoves and consists n the novel oonstruction as hereinafter set forth.

In the drawings:

Figure l is a perspective view of the range looking from the rear side;

Figure 2 is a horizontal section thereof;

Figure 3 is an enlarged horizontal section;

`Figure l is a perspective view of the burner;

Figure 5 is a rear elevation; and

Figure 6 is a vertical section.

A is acoal range of any suitable construction, B is the oven thereof. C is a gas burner which is formed at the inner end of the tubular arm D passing outward through a slot E in the end wall of the oven adjacent to the bottom thereof. The outer end of the arm D is provided with a hub portion F which is pivotally secured in bearings to permit of swinging the Iarm D completely in the slot E. G is a gas-mixing chamberl formed in a stationary hollow casting adj acent to the hub F and said hub is formedwith a portion F', forming a valve or shutter for closing off saidrnixing chamber when the arm D is within the slot E. When, however, the arm is swung inward into the oven, a port F2 will be registered with the chamber G, establishing communication between said chamber and the hollow arm. I-I is a gas supplied valve having a nozzle H discharging into the mixing chamber Gr. I is arock shaft for operating the valve H, which shaft extends to the front of the range and is provided with a crank handle J. The rock shaft I has an upwardly-extending rock arm K with the pin K thereon engaging a slotted bearing in a rock arm L. This rock arm is connected by a link M and bell crank lever N to a rod O, which extends into the rear Hue P and operates a valve Q. cover- .ing a vent V from the oven into said flue.

There is also a link R connecting the rock ber and the ,hollowV arm. i.

AND ,COAIIHANGH i 1921. Serial N0.`470,133.

the stove. :is turned into a .position to open the gas valve, it will also open the vent V,'ad1nitting air into the oven in thecenter of the annular burner C andy will operate the 'valve Q, to

open the vent into the exhaust ilue.. This will furnish air for combustion tothe burner and'escape for the gaseous roductsof .c'ombustion.. On the otherhan when the rock arm I is turned to' close the gas valve, it will simultaneously close the air, vent .V and chamber Q. V

In order to insure l.the turning-olf of gas when the burner .and armD are swung outward into the, slot E, `there'is.'arranged upon the hub F a lprojecting lug This engages a rodfX which ispivotedtothe arm K andthe arrangementis such that when:

the arm D is swung into theslot E, .the.lug

IV will actuate .the rod X sov as to' rock the` I arml K and close the valve II. The ,parts I` will also function tofswing thearin Din,-

ward intothe oven whenever the rockshaft I is turned to open the valve H. 'Thus vthere is vno danger4 of leaving the gas vori-when. the

rock arm-vis out ofoperative position, and also when the rock arm is located within the slot E, the flange. F? will absolutely` cut.

oli communication between the mixinglcham-- A stove lconstructed. as vdescribed canV used: either withsolid fuel or with gasand can be quickly adjusted for the use of either prising an oven having a slotted side wall,

a gas burner yhavingy a hollow arm pivotally mounted outside of the oven chamber and adapted to be swung inward or outward 90 fuel. When the arml D isswung outwardv into the slot E, `itlcompletely removesthe ioo` through said slot, and means for supplying a combustiblev gaseous mixtureto said hollow arm.

2. A combination gas and coal range com prising an oven chamber having a slotin one wal-l thereof adjacent to the oven bottom, a gas burner having a hollow arm pivotally mounted outside of the oven and adapted to be swung inward through said slot, said arm forming, when swung outward, a closure-for said slot, and means for supplying a combustible gaseous mixture to said hollow arm when s-wung inward into the oven.

3. A combination gas and coal range conrprising` an oven having a slot in one wall thereof adjacent to the oven bottom, a gas burner having a hollow arm pivotalljT mounted outside of the oven and adapted to be swung inward through said slot, said arm forming a closure for the slot when swung outward, a gas mixing chamber adjacent to the outer end of said hollow arm and a valve or shutter on said hollow arm for closing olf said gas-mixing chamber when said arm is swung outward and for establishing open communication between said arm and mixing chamber when the burner is swung into the oven.

4L. A combination gas and coal range comprising an oven having a slot in one wall thereof adjacent to the oven bottom, a gas burner, a hollow arm integral with said gas burner lhaving its opposite end pivotally mounted outside of said oven, said arm being adapted `to be swung through said slot to carry said burner into the center of the oven and to close the slot when swung out ward, an air inlet port in the bottom of the Oven registering with said burner when in its inner position, means for supplying a combustible gas to said hollow arm, and

means operated by the outward swinging of said arm for closing said air inlet port. 5. A combination gas and coal range comprising an oven having a slot in one wall thereof adjacent to the bottom, an annular gas burner provided with a hollow arm, said arm being pivotally mounted outside of said oven and being adapted to be swung inwardthrough said slot into the center of the oven, an air inlet port for reigstering with the center of said burner when in its inner position, a valve or shutter for closinggsaid port, and means operated by the swinging of said hollow arm outward or inward for actuating said valve to respectively close and open said air inlet port,

6. A combination gas and coal range coinprising an ovcn having a slot in one wall thereof adjacent to the oven bottom, an annular burner havino a hollow arm pivotally .mounted outside of said oven and adapted to be swung Ainward through said slot, a port in the oven bottom in registration with the center of said burner when in its inner position. a valve for closing said port, an outlet vent in said oven, a shutter for clos ing said vent, and means operated by vthe swinging of said arm outward or inward for operating said valve and shutter to open the same when the burner is in the oven and to close the port when the burner is swung` outward. j

I 7. A combination and coal range comprising an oven having a slot in 'the side wall thereof adjacent to the bottom, burner having a hollow arm pivoted outside of said oven and adapted to be swung inward through said slot, a gas supplied valve for said hollow arm, means for opening and closing said gas supplied valve, and means operated by the outward swinging of said hollow arm for automatically closing said gas supplied valve.

8. In a coal and gas range, the combination with an oven, of a gas burner rockably mounted outside and adjacent thereto and adapted to move into and out 0f said oven, means for rocking said burner and means cooperating with said rocking means for automatically controlling the gas supply to said burner,

9. ln a coal and gas range, the combination with an oven adapted to receive a mova` ble gas burner, a movable gas burner pivotally mounted outsidel and adjacent thereto, means for moving said burner into and out of said oven, means for automatically supplying a combustible gaseous mixture to said burner when the same is moved into said oven and for cutting off said supply when the burner is withdrawn from the oven.

ln testimony whereof l aihx my signature.

WHAM V. RBlNSUN. 

